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I've playtested this and it is hilarious. I wouldn't say it's super competitive in the Modern format, but you'll definitely get some people who are just stunned that they were killed by 0/1 goat tokens.
Stack white mana symbols and drop your Springjack Shepherds to fill the board with GOATS! Then, flickerwisp that mo-fo to drop even more GOATS! Once you've filled the pasture, drop a Mirror Entity, Furystoke Giant or Honor of the pure to either make them REALLY BIG SCARY GOATS and swing away or turn each creature you have into a free shock spell.
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